Q211. Which Data Model is also considered as an inverted tree where master is present in the bottom of the tree and the branches contain information linked to the master.
Q212. Which Data Model is based on the principle of setting relationships between two or more tables of the same database
Q213. The Relational Database Model was proposed in ________________
Q214. Which Data Model is the most commonly used database model?
Q215. ____________________ is a real world object about which information is to be stored in a database.
Q216. Roll number, Name, Admission number, etc., are __________________ associated with the entity student. These __________________ are represented in the form of columns.
Fill same word in both the blanks
Q217. A collection of fields make a _______X________, a collection of ______X_______ make a _______Y________ and a collection of ________Y______ make a _____Z_______
Q218. All the field values that are eligible to be the primary key are the ________________
Q219. Those candidate keys which are not the primary key are called __________________
Q220. Candidate Keys - Primary Keys = ________________
